<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>padding</title>
    <style>
        div{
            border: 1px solid #999999;
            /*padding: 20px; 四个面(上下左右)都是20px*/
            /*padding: 20px 30px; 20px上下 30px左右*/

        }
    </style>
</head>
<body>
<div>soft material that is placed inside sth to make it more comfortable or to change its shape
    soft material that is placed inside sth to make it more comfortable or to change its shape</div>
</body>

</html>